# 安装包
# pip install package_name

# 升级包
# pip install --upgrade package_name

# 卸载包
# pip uninstall package_name

# 查看已安装的包
# pip list

# 安装指定版本的包
# pip install package_name==version_number

# 查看包的详细信息
# pip show package_name

# 清理缓存
# pip cache purge

# 安装本地包
# pip install /path/to/package









